Zipoites I of Bithynia

Ziopoetes I
Basileus of Bithynia
Kings of Bithynia
Reign	326 BC - 278 BC
Predecessor	Bas
Successor	Nicomedes I
Born	354 BC
Died	278 BC (age 76)

Zipoetes I, also Zipoites I or Ziboetes I, possibly Tiboetes I (Greek: Zιπoίτης or Zιβoίτης; lived c. 354 BC – 278 BC, ruled c. 326 BC – 278 BC; three syllables, oe is a diphthong) was the second independent ruler of Bithynia.

He succeeded his father Bas on the throne in 326 BC and reigned for forty-eight years, carrying on successful wars with Lysimachus and Antiochus, the son of Seleucus I Nicator. In 315 BC he carried on a war against Astacus and Chalcedon, which failed in the face of a relief army sent by Antigonus I Monophthalmus. In 301, after Antigonus' death, he attacked again, and was victorious, but Astacus was destroyed in the war. He founded a city which was called Zipoetium (after himself) at the foot of Mount Lypedron; the exact locations of both the city and the mountain are unknown.

He lived to the age of seventy-six, and left behind him four children, the eldest of whom, Nicomedes, succeeded him. He was the first ruler of Bithyinia to assume the title of basileus (king), assuming this title in the year 297 BC.

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